Baltimore Orioles starting pitcher Wei-Yin Chen, of Taiwan, walks off the field after an inning of a baseball game against the Detroit Tigers, Friday, July 31, 2015, in Baltimore. (AP Photo/Patrick ．．． 較多Baltimore Orioles starting pitcher Wei-Yin Chen, of Taiwan, walks off the field after an inning of a baseball game against the Detroit Tigers, Friday, July 31, 2015, in Baltimore. (AP Photo/Patrick Semansky) 較少